A kind of high temperature resistant amino resin impregnating paint and preparation method thereof
A technology of amino resin and dipping varnish, which is applied in the direction of coating, polyester coating, etc., can solve the problems of insufficient temperature resistance and toughness, and achieve the effect of high insulation and heat resistance
Active Publication Date: 2015-11-18
ANHUI LEESOV IND
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AI Technical Summary
Problems solved by technology
However, the temperature resistance grade and toughness of the cured product of this system are insufficient, so it is necessary to modify the epoxy anhydride impregnation paint system, and the cured product of the impregnation paint system can meet the requirements of temperature resistance grade and mechanical properties at the same time
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0012] A high-temperature-resistant amino resin impregnated paint is made of the following raw materials (kg) in parts by weight:
[0013] 582-2 amino resin 35, unsaturated polyester resin 4, silicone resin 7, calcium naphthenate 3, xylene 20, methyl ethyl ketone 5, tetraethylenepentamine 3, maleic anhydride 6, monobutyltin oxide 2. tert-butyl peroxybenzoate 1, butadiene 9, polypropylene glycol acrylate 5, alkylphenol polyoxyethylene ether phosphate 9, film-forming agent 4.
[0014] The film-forming agent is made of the following raw materials in parts by weight: phenyltriethoxysilane 2, anilinomethyltriethoxysilane 2, ferrocene 2, aluminum nitride 1, nano-attapulgite 2, Epoxy soybean oil 5, morpholine 1, polyisobutylene 4;
[0015] The preparation method is as follows: mixing various materials, heating to 105-110 DEG C, stirring and reacting for 2-3 hours, and grinding to remove slag.
[0016] The preparation method of high-temperature-resistant amino resin impregnation var...
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Abstract
The invention provides high-temperature-resistant amino resin impregnating varnish and a preparation method thereof. The impregnating varnish is prepared from the following raw materials in parts by weight: 32-35 parts of 583-2 amino resin, 3-4 parts of unsaturated polyester resin, 5-7 parts of organic silicon resin, 2-3 parts of calcium naphthenate, 20-24 parts of xylene, 4-5 parts of methyl ethyl ketone, 2-3 parts of tetraethylenepentamine, 4-6 parts of maleic anhydride, 1-2 parts of monobutyltin oxide, 1-2 parts of tert-Butyl peroxybenzoate, 6-9 parts of butadiene, 4-5 parts of poly(propylene glycol) acrylate, 9-10 parts of alkylphenol ethoxylate phosphate, and 4-5 parts of film forming agent. The impregnating varnish can be used for a long time without yellowing or bubbling in a high-temperature environment, can be widely applied to impregnating insulation of medium-small motor coils, transformers, rectifiers and other electrical appliance coils.
Description
technical field [0001] The invention belongs to the field of insulating materials, and relates to an impregnating varnish, in particular to a high-temperature-resistant amino resin impregnating varnish and a preparation method thereof. Background technique [0002] Pressure impregnation is generally used in the production of motors, transformers, and wires. The workpiece is pre-baked to remove moisture and then cooled, placed in a vacuum environment to remove internal air and volatiles, relying on the gravity of the paint liquid in the vacuum and applying a certain pressure to make the paint liquid quickly penetrate and fill the inner layer of the insulating structure. This process produces a continuous, dense, pinhole-free paint film. [0003] The existing impregnating paint is made of epoxy resin as the main resin and acid anhydride as the curing agent. However, the temperature resistance grade and toughness of the cured product of this system are insufficient, and the e...
Claims
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IPC IPC(8): C09D161/20C09D167/06C09D183/04C09D147/00C09D7/12C09D5/25C08F236/06
Inventor 鲍征
Owner ANHUI LEESOV IND